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Finding the Fourth Proportional to 161,106.15, 241,566.60 and 66,401.70

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Solution

The fourth proportional to 161,106.15, 241,566.60 and 66,401.70 is: 99,564.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,106.15 : 241,566.60 = 66,401.70 : x
  2. Step 2: Convert to fraction form
    161,106.15/241,566.60 = 66,401.70/x
  3. Step 3: Cross multiply
    161,106.15x = 241,566.60 × 66,401.70
  4. Step 4: Simplify right side
    161,106.15x = 16,040,432,903.22
  5. Step 5: Solve for x
    x = 16,040,432,903.22/161,106.15
  6. Step 6: Final answer
    x = 99,564.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.